<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
    
    <input type="button" id="delete" value="清空">

    <style>
        #delete{
            width: 304px;
            height: 40px;
            color: white;
            background-color: orange;
            border-radius: 5px;
            border: none;
        }
    </style>


</body>
</html>